rs255690

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001999.4(FBN2):​c.2863+23G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.317 in 1,577,716 control chromosomes in the GnomAD database, including 84,803 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.25 ( 5731 hom., cov: 33)
Exomes 𝑓: 0.32 ( 79072 hom. )

Consequence

FBN2
NM_001999.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.271
Variant links:
Genes affected
FBN2 (HGNC:3604): (fibrillin 2) The protein encoded by this gene is a component of connective tissue microfibrils and may be involved in elastic fiber assembly. Mutations in this gene cause congenital contractural arachnodactyly. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 5-128349932-C-A is Benign according to our data. Variant chr5-128349932-C-A is described in ClinVar as [Benign]. Clinvar id is 258514.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.343 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FBN2NM_001999.4 linkuse as main transcriptc.2863+23G>T intron_variant ENST00000262464.9 NP_001990.2 P35556-1
FBN2XM_017009228.3 linkuse as main transcriptc.2710+23G>T intron_variant XP_016864717.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FBN2ENST00000262464.9 linkuse as main transcriptc.2863+23G>T intron_variant 1 NM_001999.4 ENSP00000262464.4 P35556-1
FBN2ENST00000508989.5 linkuse as main transcriptc.2764+23G>T intron_variant 2 ENSP00000425596.1 D6RJI3

Frequencies

GnomAD3 genomes
AF:
0.250
AC:
38085
AN:
152080
Hom.:
5728
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.107
Gnomad AMI
AF:
0.332
Gnomad AMR
AF:
0.293
Gnomad ASJ
AF:
0.285
Gnomad EAS
AF:
0.117
Gnomad SAS
AF:
0.231
Gnomad FIN
AF:
0.183
Gnomad MID
AF:
0.241
Gnomad NFE
AF:
0.347
Gnomad OTH
AF:
0.271
GnomAD3 exomes
AF:
0.280
AC:
70163
AN:
250474
Hom.:
10842
AF XY:
0.281
AC XY:
38016
AN XY:
135376
show subpopulations
Gnomad AFR exome
AF:
0.100
Gnomad AMR exome
AF:
0.332
Gnomad ASJ exome
AF:
0.288
Gnomad EAS exome
AF:
0.112
Gnomad SAS exome
AF:
0.235
Gnomad FIN exome
AF:
0.197
Gnomad NFE exome
AF:
0.344
Gnomad OTH exome
AF:
0.289
GnomAD4 exome
AF:
0.324
AC:
462250
AN:
1425518
Hom.:
79072
Cov.:
27
AF XY:
0.322
AC XY:
229060
AN XY:
711380
show subpopulations
Gnomad4 AFR exome
AF:
0.0968
Gnomad4 AMR exome
AF:
0.326
Gnomad4 ASJ exome
AF:
0.281
Gnomad4 EAS exome
AF:
0.114
Gnomad4 SAS exome
AF:
0.238
Gnomad4 FIN exome
AF:
0.202
Gnomad4 NFE exome
AF:
0.354
Gnomad4 OTH exome
AF:
0.305
GnomAD4 genome
AF:
0.250
AC:
38092
AN:
152198
Hom.:
5731
Cov.:
33
AF XY:
0.240
AC XY:
17891
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.107
Gnomad4 AMR
AF:
0.293
Gnomad4 ASJ
AF:
0.285
Gnomad4 EAS
AF:
0.118
Gnomad4 SAS
AF:
0.230
Gnomad4 FIN
AF:
0.183
Gnomad4 NFE
AF:
0.347
Gnomad4 OTH
AF:
0.268
Alfa
AF:
0.322
Hom.:
8422
Bravo
AF:
0.254
Asia WGS
AF:
0.158
AC:
552
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJun 14, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
5.1
DANN
Benign
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs255690; hg19: chr5-127685624; API